This isn't funny. Mice and rats are among the most intelligent animals used in research, and despite ethical regulations on their treatment, they are often ignored. Many of these animals endure severe procedures without adequate pain relief, or none at all. This widespread suffering also causes mental health problems for many of the researchers who have to regularly euthanize them. These animals sacrifice their lives to improve human health and well-being. At the very least, we should show respect for their pain and suffering, which is undertaken for our benefit.